GrowSpan Greenhouse Systems
GrowSpan greenhouses are available with polycarbonate ends and greenhouse film top covering or choose Gothic style, featuring solid polycarbonate, or polycarbonate with roll-up sides. The frame and end frame are constructed from highest quality USA-made, triple-galvanized structural steel tubing. 8mm twin-wall polycarbonate provides superior insulating qualities, offers reduced heating costs and comes with a 10 year warranty. The Double layer 6 mil 4 year greenhouse film, with Inflation Fan Kit, allows for superior heat retention. Poly latches are included and the "Twist of the Wrist" roll-up sides make ventilation easy. Heavy-duty double doors come complete with stainless steel hinges and latch. An optional second door kit is also available. Heavy-duty ground posts are included with 20'W, 26'W, 30'W and 34'W units and heavy-duty mounting feet, that can be used on any surface and come with pre-drilled fastening holes, are included with 38'W units. During extreme heat, we recommend our SunBlocker 60% black knitted shade panels, sold separately, to eliminate heat stress and to ensure optimum plant growth. Choose from house style or quonset style greenhouse kits.